<script lang="ts" name="TopCategory" setup>
import useStore from '@/store'
import {  watchEffect } from 'vue';
// 获取路由参数对象
import {useRoute} from 'vue-router'
import GoodsItem from './components/goods-item.vue'
const {category,home}=useStore()
const route=useRoute()
// 轮播图函数
home.getBannerList()
// route路由参数对象 params/    ？query
// category.getTopCategory(route.params.id as string)
// 问题：当参数发生改变 数据没有发生改变  因为组件缓存 组件复用 setup没有再执行
// 解决方案 ：侦听器 侦听参数的变化 2.优化 watchEffect
// wath(侦听对象，回调函数，配置参数)
// watch 侦听的是全局 不只是侦听组件内
// watch(()=>route.params.id,()=>{
//   // fullPath 完整路由
//   if(route.fullPath===`/category/${route.params.id}`)
//       category.getTopCategory(route.params.id as string )
// },{
//   immediate:true
// })
// watchEffect 1.立即侦听 不需要深度侦听配置
//2. 参数是回调函数 内部响应式的数据 发生改变 watch就执行了
watchEffect(()=>{
  // fullPath 完整路由
  if(route.fullPath===`/category/${route.params.id}`)
      category.getTopCategory(route.params.id as string )
})




</script>

<template>
 <div class="top-category">
    <div class="container">
      <!-- 渲染面包屑导航 -->
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>{{category.topCategoryList.name}}</XtxBreadItem>
      </XtxBread>
    <!-- 轮播图 -->
     <XtxCarousel :slides="home.bannerList" style="height: 500px"  autoplay :duration="1000" />
     <!-- 所有二级分类 -->
    <div class="sub-list">
  <h3>全部分类</h3>
  <ul>
    <li v-for="item in category.topCategoryList.children" :key="item.id">
      <a href="javascript:;">
        <img v-lazy="item.picture" >
        <p>{{item.name}}</p>
      </a>
    </li>
  </ul>
   </div>
    <!-- 分类关联商品 -->
<div class="ref-goods" v-for="item in category.topCategoryList.children" :key="item.id">
  <div class="head">
    <h3>- {{item.name}} -</h3>
    <p class="tag">温暖柔软，品质之选</p>
    <XtxMore />
  </div>
  <div class="body">
    <GoodsItem :goods="goods" v-for="goods in item.goods" :key="goods.id" />
  </div>
</div>
  </div> 
  </div>
</template>

<style scoped lang="less">
.top-category {
  h3 {
    font-size: 28px;
    color: #666;
    font-weight: normal;
    text-align: center;
    line-height: 100px;
  }
  .sub-list {
    margin-top: 20px;
    background-color: #fff;
    ul {
      display: flex;
      padding: 0 32px;
      flex-wrap: wrap;
      li {
        width: 168px;
        height: 160px;
        a {
          text-align: center;
          display: block;
          font-size: 16px;
          img {
            width: 100px;
            height: 100px;
          }
          p {
            line-height: 40px;
          }
          &:hover {
            color: @xtxColor;
          }
        }
      }
    }
  }
}
 .ref-goods {
    background-color: #fff;
    margin-top: 20px;
    position: relative;
    .head {
      .xtx-more {
        position: absolute;
        top: 20px;
        right: 20px;
      }
      .tag {
        text-align: center;
        color: #999;
        font-size: 20px;
        position: relative;
        top: -20px;
      }
    }
    .body {
      display: flex;
      justify-content: flex-start;
      flex-wrap: wrap;
      padding: 0 65px 30px;
    }
  }
</style>